When you’re using platforms such as Facebook, Twitter and Instagram, do you ever think about your privacy?

If so, you’re far from alone, as a new study has revealed that a large number of U.S. internet users are concerned about their privacy when using social networks, with Facebook topping the poll.

June 2014 research from Harris Interactive for WP Engine found that 66 percent of internet users feel privacy is an issue on Facebook, which finished first ahead of email (56 percent) and web browsers (52 percent).

Social photo-sharing apps such as Instagram were cited by 35 percent of users, while Twitter (filed under micro-blogging sites) was selected by 23 percent of respondents.